How about a series of levels that you have a specific amount of time to complete.
One is a Doomtown level where you have to find parts to the fridge before the bomb hits.
Another is a begining to the truck chase where you have to free the horse before the Nazi trucks pass.
The other one I have is a catacombs level where you have to make an air pocket before the flames reach you. Anyone affiliated with LucasArts please consider.

It's out now. Sorry for not keeping the site more up-to-date, I've been extremely busy - but more importantly, after LucasArts' handling of Staff of Kings I've been extremely disillusioned with Indy gaming.